The Hugin project's mission is not only to provide a powerful GUI, but also to provide opensource replacements for the small number of closed source components of Panorama tools, especially PTStitcher.
A PTStitcher replacement, called nona has been developed, supporting its most important features.

Development

Hugin is Open Source, and like every community-developed software very much dependent on voluntary contributions of resources. If you have coding skills, you are welcome to look at the source code and contribute to it. Even if you don't have coding skills, you most likely have some skills that the project could use and you are more than welcome to contribute your time. The tasks requiring attention change frequently and so do the required skillset and resources. Find more about the development process.